After Autocar voted the road-going 911 GT3 RS as Britain's Best Drivers’ Car earlier this week, it comes as no surprise that it’s racing brother, the GT3 RSR clinched the title of the world's most successful GT Racer.

From its debut in 2004 (996), the RSR has found winning ways, taking no less than six class victories in that season. Since then the precision machine has undergone numerous improvements on its way to 19 class and overall victories between 2007 and 2010.

“It’s impressive how the 911 GT3 RSR has developed from year to year. The lap times alone are astounding, because despite the restrictions imposed on us again and again by the regulations, the car just got faster every year,” says Porsche works driver Joerg Bergmeister, who celebrated the majority of his successes at the wheel of the RSR. For this reason, the five-time winner of the American Le Mans Series is not at all anxious about tackling the 2011 season: “When you finish a season you always think: now we’ve reached our limit, now the car’s gone as far as it can go. And then Porsche comes up with something new again. And I reckon it won’t be any different in 2011.”

Catch the full story after the jump.

The boys at Porsche Motorsport really know what they’re doing and have adopted a typically German, clinical approach to the ongoing development of the car. For example, in 2008, all they did was save weight. That doesn’t seem like a big deal until you dig deeper to found out how they did it. The weight saving was accomplished through changing materials that make up the braking system, and get this, they rewired the entire car with special cable that weighs half as much as the usual stuff! Now that’s what we call pulling out all the stops! They engineer by a classic philosophy of doing 10 things 1% better rather than concentrating on making one thing 10% better – and it works.

Porsche 911 GT3 RSR (997) Racing Accolades

2010

- Winner American Le Mans Series (GT class)

- Winner Le Mans Series (GT2 class)

- 1st place Le Mans 24 Hours (GT2 class)

- 1st place Dubai 24 Hours (overall win)

- 1st place Spa 24 Hours (overall win)

2009

- Winner American Le Mans Series (GT2 class)

- Winner Le Mans Series (GT2 class)

- Winner FIA GT Championship (GT2 class)

- 1st place Nürburgring 24 Hours (overall win)

2008

- Winner American Le Mans Series (GT2 class)

- 1st place Sebring 12 Hours (GT2)

- 1st place Nürburgring 24 Hours (overall win)

- 1st place Dubai 24 Hours (overall win)

2007

- Winner International GT Open Championship

- 1st place Le Mans 24 Hours (GT2 class)

- 1st place Nürburgring 24 Hours (overall win)

- 1st place Spa 24 Hours (GT2 class)

- 1st place Petit Le Mans (GT2 class)

- 1st place Mil Milhas Sao Paulo (GT2 class)

You can bet your bottom dollar that the 2011 season will see them add to this impressive list.